<style>
  .my404 {
    position: relative;
    min-width: 320px; }

  .my404 {
    min-height: 100%;
    height: 100%; }

  .my404 {
    font: 12px/16px "Roboto", sans-serif;
    color: #666666;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center; }
  .my404::before {
    content: '';
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: url("../assets/img/blur-bg.jpg") no-repeat center center;
    background-size: cover;
    will-change: transform;
    z-index: -1; }

  .page-not-found-modal {
    width: 638px;
    margin: 0 auto;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 5px;
    font-weight: 300;
    color: #ffffff;
    padding: 32px;
    margin-top: 200px;
    text-align: center; }
  .page-not-found-modal h1 {
    font-weight: 300;
    margin-bottom: 32px; }
  .page-not-found-modal p {
    font-size: 16px;
    line-height: 24px; }
  .page-not-found-modal a {
    text-decoration: none;
    outline: none;
    -webkit-transition: all 0.2s ease;
    transition: all 0.2s ease;
    color: #209e91;
    display: inline-block; }
  .page-not-found-modal a:hover {
    color: #1b867b; }
</style>
<div class="my404">
  <div class="page-not-found-modal">
    <h1>404 :(</h1>

    <p>对不起, 该页面不存在. <a href="/">返回登录页.</a></p>
  </div>
</div>

